bbPress.org

You can use CSS to do this. Simply find the class or id of the tags (view source is the quickest way), probably enclosed in <p> tags, I can’t remember, then edit the style.css file in your theme. Find the class/id and add:

‘text-transform:capitalize;’

More info can be found here: http://www.w3schools.com/Css/pr_text_text-transform.asp